CVE-2023-52518

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_codec: Fix leaking content of local_codecs The following memory leak can be observed when the controller supports codecs which are stored in local_codecs list but the elements are never freed: unreferenced object 0xffff88800221d840 (size 32): comm "kworker/u3:0", pid 36, jiffies 4294898739 (age 127.060s) hex dump (first 32 bytes): f8 d3 02 03 80 88 ff ff 80 d8 21 02 80 88 ff ff ..........!..... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffffb324f557>] __kmalloc+0x47/0x120 [<ffffffffb39ef37d>] hci_codec_list_add.isra.0+0x2d/0x160 [<ffffffffb39ef643>] hci_read_codec_capabilities+0x183/0x270 [<ffffffffb39ef9ab>] hci_read_supported_codecs+0x1bb/0x2d0 [<ffffffffb39f162e>] hci_read_local_codecs_sync+0x3e/0x60 [<ffffffffb39ff1b3>] hci_dev_open_sync+0x943/0x11e0 [<ffffffffb396d55d>] hci_power_on+0x10d/0x3f0 [<ffffffffb30c99b4>] process_one_work+0x404/0x800 [<ffffffffb30ca134>] worker_thread+0x374/0x670 [<ffffffffb30d9108>] kthread+0x188/0x1c0 [<ffffffffb304db6b>] ret_from_fork+0x2b/0x50 [<ffffffffb300206a>] ret_from_fork_asm+0x1a/0x30

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/626535077ba9dc110787540d1fe24881094c15a1
https://git.kernel.org/stable/c/b938790e70540bf4f2e653dcd74b232494d06c8f
https://git.kernel.org/stable/c/eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1
https://git.kernel.org/stable/c/626535077ba9dc110787540d1fe24881094c15a1
https://git.kernel.org/stable/c/b938790e70540bf4f2e653dcd74b232494d06c8f
https://git.kernel.org/stable/c/eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1

Configurations

No configuration.

History

21 Nov 2024, 08:39

Type	Values Removed	Values Added
References	~~() https://git.kernel.org/stable/c/626535077ba9dc110787540d1fe24881094c15a1 -~~	() https://git.kernel.org/stable/c/626535077ba9dc110787540d1fe24881094c15a1 -
References	~~() https://git.kernel.org/stable/c/b938790e70540bf4f2e653dcd74b232494d06c8f -~~	() https://git.kernel.org/stable/c/b938790e70540bf4f2e653dcd74b232494d06c8f -
References	~~() https://git.kernel.org/stable/c/eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1 -~~	() https://git.kernel.org/stable/c/eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1 -

01 Nov 2024, 16:35

Type	Values Removed	Values Added
CWE		CWE-770
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
Summary		(es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: Bluetooth: hci_codec: corrige el contenido filtrado de local_codecs La siguiente pérdida de memoria se puede observar cuando el controlador admite códecs que se almacenan en la lista local_codecs pero los elementos nunca se liberan: objeto sin referencia 0xffff88800221d840 ( tamaño 32): comunicación "kworker/u3:0", pid 36, santiamén 4294898739 (edad 127.060 s) volcado hexadecimal (primeros 32 bytes): f8 d3 02 03 80 88 ff ff 80 d8 21 02 80 88 ff ff ... .......!..... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ retroceso: [] __kmalloc+0x47/0x120 [] hci_codec_list_add.isra.0+0x2d/0x160 [] hci_read_codec_capabilities+0x183/0x270 [] hci_read_supported_codecs+0x 1bb/0x2d0 [] hci_read_local_codecs_sync+0x3e/ 0x60 [] hci_dev_open_sync+0x943/0x11e0 [] hci_power_on+0x10d/0x3f0 [] Process_one_work+0x404/0x800 [] hilo_trabajador+0x374/0x670 [] kthread+0x188/ 0x1c0 [] ret_from_fork+0x2b/0x50 [] ret_from_fork_asm+0x1a/0x30

02 Mar 2024, 22:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-03-02 22:15

Updated : 2024-11-21 08:39

NVD link : CVE-2023-52518

Mitre link : CVE-2023-52518

CVE.ORG link : CVE-2023-52518

JSON object : View

Products Affected

No product.

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

5.5 /10